Grinding-machine.



PATENTED JULY A30. 1907.

A. B. mums..- GRINDING MAGHINB. APPLICATION FILED APRI?, 1903.v BEHWDJUNE 18, 1907.

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ABRAHAM B. LANDIS, OF WAYNESBORO, PENNSYLVANIA.

-GRINDING-MACHINE.

,Specication of Letters Patent.

Patented July 30,1907.

. Application ned sp1-ii?, 190s. serrano. 151,524.. Renewa im 15,1907.serianaavaeo.

county of Franklin and State of Pennsylvania, have invented certain newand useful Improvements in GrindingQMacl-iines, of which the followingis a. specifi- My said invention relates tien and arrangement of thedriving gear for the carriage and the work'lholding mechanism ofagrinding machine,.whereby a'sing'le motor mounted` upon the machineitself, or any yother convenient power,l may be employed for drivingsaid carriage and work without the use oftoverhea'd shafting, all aswill be hereinafter more fully described and claimed. i

Referring to 'the accompanying drawings which are made a part hereof andon which similar reference eharacters indicate similar parts: Figure lis an elevation of one side of a grinding machine embodying my saidinvention, a portion of the head-stock base and frame being broken awayto show the interior construction, and Fig. 2 a detail erosssection onthe dotted line 2-.2 in Fig. l. i l

In said drawings the portions marked Arrepresent the main frame of themachine, B the traveling carriage, C the head-steek spindle, and Dthemotor for I The frame A and traveling carriage are of substani tiallythe same'form and construction asshown in 'several of myformer'patents'. The grinding wheel W and the mechanism connectedtherewith are mounted on said carriage B and driven by a motor M alsomounted on said carriage.` This feature of construction forms' .thesubject' matter of a separate application and is 'thereforenotparticularly described herein.`V 1

The head-stock spindle C is journaled in asleeve C1 which is swiveled-onthe top of a base C2 whieh..is mounted to slide upon the top of thetable C3.

The motor is an ordinaryelectric motor of suitable Ipower mounted upon aframe or bracket A2 secured rigidly to one end of the frame A of themachine.- It is connected by means of a belt l with a pulley on the endof a driving shaft 2 which is journaled insuitable bearings in the frameA? beneath said motor. -A gear 3 is mounted uponvsaid shaft 2 and mesheswith Ya similar gear 4, mounted upon a drivingfshaft which is alsojournaled in bearings Vin frame A2 and is the shaft to which is gearedthe ,mechanism 'for driving the traveling carriage B. The gears 3 andaare preferably of that character which permits a change of speed between the parts, as shown. Another gear wheel 6 on 1 shaft 2 meshes witha gear 7 on the lower end of 'a vertical shaft 8, which shaft is mountedin suitable 'bearings in frame A2; Saidshaft 8 is provided with a jointQ eXtending in one direction and ajoint v extending inthe otherdirection, and between said joints it is to an improvedeonstruc? formedin two' parts adapted to telescope one within the other, being held fromindependent rotation'by being formed angular in cross section or by aspline and groove connection. Above the'joint l0 is mounted another gearwheel, II, which meshes with a similar gear wheel l2 on the end of alongitudinal shaft 13,

which is mounted at one end iu a bearing formed in a bracket A3 securedto the end of table C3 and at its other end is` mounted in bearings inthe base (l2 of the head-stock, being adapted to 'slide through saidbearings when said head-stoel; base is adjusted. A small gear wheelv14,I is mounted on said shaft l3 just inside of head-stock base andmeshes with a gear l5 on the lower endA of a vertical shaft 1G, which ismounted in bearings in apart connected withthe'sleeve C1. Another gearwheel I7 on the same shaft meshes with the gear wheel I8 on a shorthorizontal shaft I9, mountedin the frame of sleeve@l and a gear wheel onthe outer end of said shaft 19 engages with internal gear around theflange of the face plate C of the head-stock spindle C. By thisarrangement lthe table4 C3 on which the head-stock' and the foot-stockC4 are mounted is permitted to swingen its pivot clamping bolt to anyangle desired for the purpose of grinding tapered work or for anypurpose, as will be readily understood. The table C3 is clampedito thebed by means of a pivot bolt l25 and washer 26, as indicated, and asshown in several of my former patents, for instance, No. 483,288.

The arrangement of gearing-for driving carriage B from shaft' 5 may beany arrangement -suitable for t the purpose, such as shown in some of myformer pat- 1 ehtsbut I have indicated by dotted lines in Fig. 1.a jsimple arrangement for the purpose of merely showing VAsonrieoperativeconnection. In the arrangement thus v shown, all worm is mountedupon-said shaft 5 adapted to mesh with a gear 3l on a transverse shaft32 which has apinion 33 meshing with a4 raek-barB5 'on carriage B. Thereversing clutch mechanism commonly used is -net shown herein. `This''arra ngementx for driving the carriageand the work by a,motor carriedonthe machineitself is very simple and enables the machine to be drivenwithout the use of overhead 'or line shafting while at the same timeproviding amachine adapted for universal grinding and to 4Aallow thevarious required speeds for the work and the several-adjustments of saidwork. 2 -v i I It is obvious lthat amotor need not be mounted upon themachineas: shown in drawing but power can be applied to thepulley onshaft 2 froniany convenient -source without departing from my invention,and' still avoid the use ofthe overhead shafting.

Having thu's fully described my said invention, whatv IV claim as newand desire to secure'by Letters-.Patent is1- A '1. In avgrindingmachine,'the combination Vof the frame, a driving shaft thereon, theadjustable table, a head-stock :unta i'oot'-stocl: carritd thereon. thedriven one of which is mounted upon a turning;- part. a gear connectedwith thc licad-stoclt spindle. tlexibh` gearing' connecting 4saidgearin; with thc driving shaft, :i motor. and gnaring connectin.;l saidmotor with said driving Shaft. whereby the work may btli-iron by saidmotor in tliittront. relativo positions. substantially as sel' lorih, l

ln a grinding mnchinv. the combination of the, frame,

tho hond and toot -stoclm Said hcadstoclt being mounted connecting:rthe.

on wivvltd and sliding parts, gearing Namo with tin` drivingshaft. thogearing on said driving slmlt' being mounted to slitlo thoreonla motorand gearing connecting tho yaid motor with thc said driving Shaft,y

--nh.\'.tautinlllv as sot forth.

il. ina A:winding machine', the combination of thc tramo, 'toult wivelndupon an adjustable basis 'thorcom a tlrvim;y lwhntt extendingthrough.bearings insaid adjustablt1 base to slide thortin, a pinionmounted to slidc thercon.

wing: connecting' said shaft with the rotary center of sani lnanlstoclt.a motor mounted upon tlic machine, gearing.; tor connecting y aid motorwith the said driving shaft,

snbtnnti-.illy as4 sot forth.

-l. ln n grinding machine, th(` combination of tho traine.-

ynnisiu ol' tln` worlvholding devices, haiti gearing cmbodying il jointsto permit ot' tht` adjustment of said nicchunv I :in sm.'substantiallyas sot, i'orth.

ln n grinding' machine. the combination oi' the 'headstork spindlemonntrd in a part pivotcd on the base having a vfaro-plato ,with a gearthcreou, a pinion engaging' the Lg-ear on said tate-plate. gonringeonnoctcd thcrcwithmount power, substantially as set forth.

ti. lu a grinding machine, tho combination of a headA ytock framemounted on a pivotcd table,v gearing arranged to drive thc face plate, ashaft engaging said goaring runy ning;r parallel to saidtallle,-gea1'ing nt the end ot said table connected with said shaft.4Said gearing boing conucctod to thc driving mechanism hv a telcscopingshaft having universal couplings, whcrcby the pivotod table can bcyQwung into tlit'crent, positions: and the driving features not bninterfered with, Substantially as set forth. v A 7: ln agrindingmachine. the combination, of gearing to drive the. hoadstock, atolcscopic shaft having nnivcrSal couplings connoctod with a shaft onthe table andcouplod to thc ydriving power, said shaft on the tablemounted to allow tht.` headgtock to slide linto diifercnt positions,find thvnsgcaring in said hcadstock structure arranged to allow thchendstockspindlo to swing' at ditt'ercntanglcs, substantially as setforth. f

8. Ina grinding machinv,-v the combination of thchcadstock` mounted upona pivotcd tabioygoai' g connected to its face plate, a longitudinal'shaft o iging' said'gcaring and running parallel withV said tablc, 'thedriving power. and a 4universal extensible connection betwccn said shaftand driviug'pmvcr, whvrebv saidI pivotcd table canbe :nvnngat differentangles andbo driven.. snbstantially as Het forth. 'I

j ln witness` whereof. I, have hereunto-set. 'my hand andl seal -atWaynesboro, Pennaylvania thi 2d day of April,

AA. yI). nineteen hundred and three.

y ABRAHAM B. LANDIS. [1.. si

Witnesses 1 l I l ALF.A N. R'UssnLL, Mnn'ro): RUSSELL.

